SM72445EVM/NOPB

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The SM72445EVM/NOPB is an Evaluation Board/Kit for a 700-Volt PWM Controller used in High-Voltage AC/DC Offline Switching Power Supply applications. The evaluation board has been designed as a general purpose board, enabling a broad range of applications for the 700-Volt Pulse-Width Modulated (PWM) Controller circuitry to be tested. SM72445EVM/NOPB is a multi-function board that provides reference designs and works with various external components to form the basis of an efficient AC/DC Power Supply equipment.

The SM72445EVM/NOPB application field is a versatile evaluation and design platform to help engineers explore various AC/DC power supply options and applications. With its various external connection options, the SM72445EVM/NOPB can be used to develop: AC/DC offline switching power supplies, DC/DC to AC/DC converters, DC/DC Buck-Boost converters, flyback converters, AC/AC transformer circuits, as well as other AC/DC applications.

Apart from its popular usage in AC/DC conversion, the SM72445EVM/NOPB can also be used to evaluate much more specific OP-AMP applications. These include high voltage, low noise, low leakage current LED drivers, op amp linear regulators or universal OP-AMP solutions.

The SM72445EVM/NOPB evaluation board contains three integrated external connector boards - labeled, J1, J2, and J3. Each of these boards serves a different application purpose and require specific external components for the different designs.

J1, power entry connectivity: is an external board that is used to connect an external AC/DC power supply for supplying power to the design. This board is used to provide an external DC power supply to the boardthrough an AC/ DC voltage. The voltage input range is 115V- at 50/60Hz.

J2, HF driver control and measurement : The board-level RF control and measurement connections help to facilitate the connection of external circuits for driving the control switch, sampling voltages and current feedback signals. In addition, this board provides connections for signal measurement and monitoring.

J3, low voltage power supply: This board comprises feature for providing a low voltage, logic-level power. The power entry connections can be used to supply the logic circuitry on the board to operate the circuits.

The SM72445EVM/NOPB evaluation board also includes circuitry for several different functions such as power conversion, detection, voltage regulation, and fault protection. In addition, the board also includes a comprehensive set of instructions and software packages for testing and evaluating the board in various AC/DC applications. The software provided is designed to simulate, debug and design power supply circuits.

The integrated 700 V PWM Controller IC used in the SM72445EVM/NOPB evaluation board is one of the most advanced ICs available for powering AC/DC power supply systems. This high performance IC offers high efficiency, fast switching frequency, high-speed transient response, low start-up current, light load efficiency, and low standby power consumption.

The SM72445EVM/NOPB working principle is based on the operation of its main component, the 700 V PWM Controller. The device receives an input voltage and converts it to a Pulse Width Modulated (PWM) output signal. The power output is then regulated with various feedback loops. This PWM output signal is used to control the switching of the external Power MOSFETs, which enables an efficient conversion of the AC/DC power supply.

SM72445EVM/NOPB is a highly efficient evaluation and design platform for AC/DC offline switching power supplies, DC/DC converters, flyback converters, AC/AC transformers, and other AC/DC applications. Its integrated 700 V PWM Controller IC provides high efficiency, fast switching frequency, high-speed transient response, low start-up current, and low standby power consumption. The board also provides external connections for signal measurement and monitoring, making it a great way to explore various AC/DC power supply options and applications.

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